This bottom bracket features a 29mm spindle diameter and is compatible with both SRAM DUB and 5Dev 29mm spindles. The cups are CNC machined and equipped with Enduro XD-15 ceramic-hybrid, ABEC-5 bearings that come with a limited lifetime warranty. Installation is straightforward using a standard SRAM DUB BSA bottom bracket tool. The package includes a connecting tube, bearing washers, multiple spacers (2.5mm, 1mm, 2mm, and 3mm), and an anti-seize pouch for complete setup.